When to plant in Cedar Park, TX
USDA Zone 9aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Cedar Park, Texas — all computed from Cedar Park's nearest NOAA weather station.
With about 254 frost-free days, Cedar Park supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. In zone 9a, frost is a minor factor for Cedar Park — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
AUSTIN GREAT HILLS · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Cedar Park’s own odds, recorded at AUSTIN GREAT HILLS.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 11 | Mar 25 | Mar 6 | Oct 27 | Nov 10 | Nov 27 |
| 32°F | Mar 29 | Mar 11 | Feb 22 | Nov 3 | Nov 20 | Dec 9 |
| 28°F | Mar 19 | Mar 1 | Jan 31 | Nov 12 | Dec 3 | Dec 29 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Cedar Park, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 22 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Cedar Park planting FAQ
When is the last spring frost in Cedar Park, TX?
Plan for the last spring frost in Cedar Park around March 11 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Cedar Park, TX?
In Cedar Park, the first 32°F freeze of fall lands around November 20 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Cedar Park in?
Cedar Park is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Cedar Park?
Cedar Park has about 254 frost-free days — a long growing season — between the average last spring frost (March 11) and first fall frost (November 20).
When should I plant tomatoes in Cedar Park?
For Cedar Park, sow tomatoes indoors about January 14–January 28 and move the seedlings out around March 18, after the last spring frost.
Never miss a window in Cedar Park
An email when it’s time to start seeds, transplant, and sow — timed to Cedar Park’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Brushy Creek · 8 km
- Leander · 8 km
- Round Rock · 15 km
- Wells Branch · 15 km
- Steiner Ranch · 18 km
- Georgetown · 21 km
- Pflugerville · 22 km
- Lakeway · 24 km
Frost dates recorded at AUSTIN GREAT HILLS, 12 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Cedar Park, TX — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00410433. Retrieved from https://blissgarden.com/texas/cedar-park.